curl -XPOST -H'Content-Type:application/json' 'http://192.168.200.6:9090/v1/file/download' -d'{
   "path": "/tmp/world.txt",
   "cid": "QmegMjF64Mh9wTzpwvCU2QJdA7gaNyBeWmKS8GGPPbMdL4"
}'
